range hood venting

**John Dirks Jr** · 07-16-2009, 01:30 PM

I know that many range hoods can be configured to either discharge inside the kitchen or vent to the exterior.

Are there any circumstances in which code requires that range hoods be vented to the exterior?

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**Billy Stephens** · 07-16-2009, 01:35 PM

Originally Posted by John Dirks Jr

I know that many range hoods can be configured to either discharge inside the kitchen or vent to the exterior.

Are there any circumstances in which code requires that range hoods be vented to the exterior?

.
Yes,

If The Manufactures Installation Instructions Require Venting to the Exterior.
.

A.D. Miller · 07-16-2009, 01:46 PM

Also if you have it over an indoor grill (open top broiler) - 1505.1.

**Rick Hurst** · 07-16-2009, 03:19 PM

Originally Posted by John Dirks Jr

I know that many range hoods can be configured to either discharge inside the kitchen or vent to the exterior.

Are there any circumstances in which code requires that range hoods be vented to the exterior?

Yeah, when my wife cooks.

Nolan Kienitz · 07-16-2009, 07:05 PM

Originally Posted by Rick Hurst

Yeah, when my wife cooks.

RH: Shame on you!

**Thomas McKay** · 07-17-2009, 05:28 AM

It would be preferable to vent to the exterior when a gas range is installed and I believe there are local regs. about that. Also some mfgs. will specify venting to the exterior for their products. When I find a kitchen where the range has been changed to gas from electric and the vent is the recirculating type I do recommend checking if it conforms to mfg. recomended installation instructions. I have seen where the clearance between the range top and the bottom of the vent dosen' provide enough room for a decent size pot, that is an other issue which need to be disclosed.

Tom
ASHI Member

**Jerry Peck** · 07-17-2009, 07:24 AM

Originally Posted by Thomas McKay

It would be preferable to vent to the exterior when a gas range is installed and I believe there are local regs. about that.

Preferable, yes, code required, no - and there should be no "local regs." in Florida which change that - in other states, possibly as there are local codes which change lots of things.

Also some mfgs. will specify venting to the exterior for their products.

Mainly high Btu "Professional" models.

I have seen where the clearance between the range top and the bottom of the vent dosen' provide enough room for a decent size pot, that is an other issue which need to be disclosed.

Yeah!

I think most over-the-range microwave ovens are designed to be installed with 16" clearance below it to the range top.

Like others, I have seen some with only about 11" there.

**Thomas McKay** · 07-17-2009, 08:13 AM

You are likely correct about FL, John is from Maryland, don't know about their regs. I worked in NC for 10 years and know they did require gas appliances to be vented (exhausted) to the exterior unless they were ventless by design. In the case of a ventless fireplace gas log installation it was always recommended opening a window silghtly and a carbon monoxide detector was always recommended when any gas appliance was present. Best to check your State or local regs.

Tom
ASHI Member